2) The sum of three times a number and 2 less than 4 times that same number is 15. Which of the following equations could be used to find the value of the number, n?
(1) 3n + 4n - 2 = 15
(3) 4n+ 3(n-2) = 15
(2) 3n + 4(n - 2) = 15
(4) 3n - 4(n-2) = 15

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

d. you cannot tell because there are no values shown.

all three statements are true

step-by-step explanation:

a shipping fee of 5% is charged online with every item purchased online

first let's just take each option and calculate them based on this, to see if the answers matched

keith buys a 40 dollar book

40 x 0.05 = 2

therefore there will be a two dollar fee on keith's book

40 + 2 =42

the first statement is true

a chair costs $80

80 x 0.05 = 4

80 + 4 = 84

the second statement is true

george buys a 20 dollar calculator

20 x 0.05 = 1

20 + 1 = 21

the third statements are true

all three statements are true